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Use new Tree-sitter captures API

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Co-Authored-By: Nathan Sobo <nathan@zed.dev>
This commit is contained in:
Max Brunsfeld 2021-05-25 16:02:43 -07:00
parent 43ddb6f640
commit 5d2ac3f4e4
8 changed files with 62 additions and 31 deletions
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2
Cargo.lock generated
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@ -2714,7 +2714,7 @@ dependencies = [
[[package]]
name = "tree-sitter"
version = "0.19.5"
source = "git+https://github.com/tree-sitter/tree-sitter?rev=a61f25bc58e3affe81aaacaaf5d9b6150a5e90ef#a61f25bc58e3affe81aaacaaf5d9b6150a5e90ef"
source = "git+https://github.com/tree-sitter/tree-sitter?rev=3112fa546852785151700d3b2fc598599ef75063#3112fa546852785151700d3b2fc598599ef75063"
dependencies = [
"cc",
"regex",

2
Cargo.toml
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@ -3,7 +3,7 @@ members = ["zed", "gpui", "gpui_macros", "fsevent", "scoped_pool"]
[patch.crates-io]
async-task = {git = "https://github.com/zed-industries/async-task", rev = "341b57d6de98cdfd7b418567b8de2022ca993a6e"}
tree-sitter = {git = "https://github.com/tree-sitter/tree-sitter", rev = "a61f25bc58e3affe81aaacaaf5d9b6150a5e90ef"}
tree-sitter = {git = "https://github.com/tree-sitter/tree-sitter", rev = "3112fa546852785151700d3b2fc598599ef75063"}
# TODO - Remove when a version is released with this PR: https://github.com/servo/core-foundation-rs/pull/457
cocoa = {git = "https://github.com/servo/core-foundation-rs", rev = "025dcb3c0d1ef01530f57ef65f3b1deb948f5737"}

2
zed/assets/themes/light.toml
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@ -10,4 +10,4 @@ string = 0xa31515
type = 0x267599
number = 0x0d885b
comment = 0x048204
property = 0x001080
property = 0x001080

4
zed/languages/rust/highlights.scm
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@ -1,5 +1,7 @@
(type_identifier) @type
(field_identifier) @property
(call_expression
function: [
(identifier) @function
@ -9,8 +11,6 @@
field: (field_identifier) @function.method)
])
(field_identifier) @property
(function_item
name: (identifier) @function.definition)

32
zed/src/editor/buffer/mod.rs
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@ -2069,12 +2069,12 @@ impl Snapshot {
let chunks = self.text.chunks_in_range(range.clone());
if let Some((language, tree)) = self.language.as_ref().zip(self.tree.as_ref()) {
let query_cursor = self.query_cursor.as_mut().unwrap();
query_cursor.set_byte_range(range.start, range.end);
let captures = query_cursor.captures(
let mut captures = query_cursor.captures(
&language.highlight_query,
tree.root_node(),
TextProvider(&self.text),
);
captures.set_byte_range(range.start, range.end);
HighlightedChunks {
range,
@ -2277,9 +2277,25 @@ impl<'a> HighlightedChunks<'a> {
self.range.start = offset;
self.chunks.seek(self.range.start);
if let Some(highlights) = self.highlights.as_mut() {
highlights.stack.clear();
highlights.next_capture.take();
highlights.captures.advance_to_byte(self.range.start);
highlights
.stack
.retain(|(end_offset, _)| *end_offset > offset);
if let Some((mat, capture_ix)) = &highlights.next_capture {
let capture = mat.captures[*capture_ix as usize];
if offset >= capture.node.start_byte() {
let next_capture_end = capture.node.end_byte();
if offset < next_capture_end {
highlights.stack.push((
next_capture_end,
highlights.theme_mapping.get(capture.index),
));
}
highlights.next_capture.take();
}
}
highlights
.captures
.set_byte_range(self.range.start, self.range.end);
}
}
@ -2323,12 +2339,12 @@ impl<'a> Iterator for HighlightedChunks<'a> {
if let Some(chunk) = self.chunks.peek() {
let chunk_start = self.range.start;
let mut chunk_end = (self.chunks.offset() + chunk.len()).min(next_capture_start);
let mut capture_ix = StyleId::default();
let mut style_id = StyleId::default();
if let Some((parent_capture_end, parent_style_id)) =
self.highlights.as_ref().and_then(|h| h.stack.last())
{
chunk_end = chunk_end.min(*parent_capture_end);
capture_ix = *parent_style_id;
style_id = *parent_style_id;
}
let slice =
@ -2338,7 +2354,7 @@ impl<'a> Iterator for HighlightedChunks<'a> {
self.chunks.next().unwrap();
}
Some((slice, capture_ix))
Some((slice, style_id))
} else {
None
}

2
zed/src/editor/buffer_view.rs
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@ -2149,7 +2149,7 @@ impl BufferView {
let mut styles = Vec::new();
let mut row = rows.start;
let mut snapshot = self.display_map.snapshot(ctx);
let chunks = snapshot.highlighted_chunks_at(rows.start);
let chunks = snapshot.highlighted_chunks_for_rows(rows.clone());
let theme = settings.theme.clone();
'outer: for (chunk, style_ix) in chunks.chain(Some(("\n", StyleId::default()))) {

22
zed/src/editor/display_map/fold_map.rs
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@ -413,6 +413,10 @@ impl FoldMapSnapshot {
}
}
pub fn max_point(&self) -> DisplayPoint {
DisplayPoint(self.transforms.summary().display.lines)
}
pub fn chunks_at(&self, offset: DisplayOffset) -> Chunks {
let mut transform_cursor = self.transforms.cursor::<DisplayOffset, TransformSummary>();
transform_cursor.seek(&offset, SeekBias::Right, &());
@ -425,17 +429,23 @@ impl FoldMapSnapshot {
}
}
pub fn highlighted_chunks_at(&mut self, offset: DisplayOffset) -> HighlightedChunks {
pub fn highlighted_chunks(&mut self, range: Range<DisplayOffset>) -> HighlightedChunks {
let mut transform_cursor = self.transforms.cursor::<DisplayOffset, TransformSummary>();
transform_cursor.seek(&offset, SeekBias::Right, &());
let overshoot = offset.0 - transform_cursor.start().display.bytes;
let buffer_offset = transform_cursor.start().buffer.bytes + overshoot;
transform_cursor.seek(&range.end, SeekBias::Right, &());
let overshoot = range.end.0 - transform_cursor.start().display.bytes;
let buffer_end = transform_cursor.start().buffer.bytes + overshoot;
transform_cursor.seek(&range.start, SeekBias::Right, &());
let overshoot = range.start.0 - transform_cursor.start().display.bytes;
let buffer_start = transform_cursor.start().buffer.bytes + overshoot;
HighlightedChunks {
transform_cursor,
buffer_offset,
buffer_offset: buffer_start,
buffer_chunks: self
.buffer
.highlighted_text_for_range(buffer_offset..self.buffer.len()),
.highlighted_text_for_range(buffer_start..buffer_end),
buffer_chunk: None,
}
}

27
zed/src/editor/display_map/mod.rs
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@ -104,9 +104,8 @@ impl DisplayMap {
.column()
}
// TODO - make this delegate to the DisplayMapSnapshot
pub fn max_point(&self, ctx: &AppContext) -> DisplayPoint {
self.fold_map.max_point(ctx).expand_tabs(self, ctx)
self.snapshot(ctx).max_point().expand_tabs(self, ctx)
}
pub fn longest_row(&self, ctx: &AppContext) -> u32 {
@ -136,6 +135,10 @@ impl DisplayMapSnapshot {
self.folds_snapshot.buffer_rows(start_row)
}
pub fn max_point(&self) -> DisplayPoint {
self.expand_tabs(self.folds_snapshot.max_point())
}
pub fn chunks_at(&self, point: DisplayPoint) -> Chunks {
let (point, expanded_char_column, to_next_stop) = self.collapse_tabs(point, Bias::Left);
let fold_chunks = self
@ -150,11 +153,13 @@ impl DisplayMapSnapshot {
}
}
pub fn highlighted_chunks_at(&mut self, row: u32) -> HighlightedChunks {
let point = DisplayPoint::new(row, 0);
let offset = self.folds_snapshot.to_display_offset(point);
pub fn highlighted_chunks_for_rows(&mut self, rows: Range<u32>) -> HighlightedChunks {
let start = DisplayPoint::new(rows.start, 0);
let start = self.folds_snapshot.to_display_offset(start);
let end = DisplayPoint::new(rows.end, 0).min(self.max_point());
let end = self.folds_snapshot.to_display_offset(end);
HighlightedChunks {
fold_chunks: self.folds_snapshot.highlighted_chunks_at(offset),
fold_chunks: self.folds_snapshot.highlighted_chunks(start..end),
column: 0,
tab_size: self.tab_size,
chunk: "",
@ -530,7 +535,7 @@ mod tests {
let mut map = app.read(|ctx| DisplayMap::new(buffer, 2, ctx));
assert_eq!(
app.read(|ctx| highlighted_chunks(0, &map, &theme, ctx)),
app.read(|ctx| highlighted_chunks(0..5, &map, &theme, ctx)),
vec![
("fn ".to_string(), None),
("outer".to_string(), Some("fn.name")),
@ -541,7 +546,7 @@ mod tests {
]
);
assert_eq!(
app.read(|ctx| highlighted_chunks(3, &map, &theme, ctx)),
app.read(|ctx| highlighted_chunks(3..5, &map, &theme, ctx)),
vec![
(" fn ".to_string(), Some("mod.body")),
("inner".to_string(), Some("fn.name")),
@ -551,7 +556,7 @@ mod tests {
app.read(|ctx| map.fold(vec![Point::new(0, 6)..Point::new(3, 2)], ctx));
assert_eq!(
app.read(|ctx| highlighted_chunks(0, &map, &theme, ctx)),
app.read(|ctx| highlighted_chunks(0..2, &map, &theme, ctx)),
vec![
("fn ".to_string(), None),
("out".to_string(), Some("fn.name")),
@ -563,13 +568,13 @@ mod tests {
);
fn highlighted_chunks<'a>(
row: u32,
rows: Range<u32>,
map: &DisplayMap,
theme: &'a Theme,
ctx: &AppContext,
) -> Vec<(String, Option<&'a str>)> {
let mut chunks: Vec<(String, Option<&str>)> = Vec::new();
for (chunk, style_id) in map.snapshot(ctx).highlighted_chunks_at(row) {
for (chunk, style_id) in map.snapshot(ctx).highlighted_chunks_for_rows(rows) {
let style_name = theme.syntax_style_name(style_id);
if let Some((last_chunk, last_style_name)) = chunks.last_mut() {
if style_name == *last_style_name {